Triple component carbon epoxy pH probe

A pH probe based on a carbon-epoxy electrode design is discussed. The electrode consists of three redox active components within a carbon epoxy matrix. These are the pH sensitive species anthraquinone and phenanthrene-quinone, along with the pH insensitive ferrocene reference compound. The values of...

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Bibliographic Details
Main Authors: Lawrence, N, Pagels, M, Hackett, S, McCormack, S, Meredith, A, Jones, T, Wildgoose, G, Compton, R, Jiang, L
Format: Journal article
Language:English
Published: 2007
Description
Summary:A pH probe based on a carbon-epoxy electrode design is discussed. The electrode consists of three redox active components within a carbon epoxy matrix. These are the pH sensitive species anthraquinone and phenanthrene-quinone, along with the pH insensitive ferrocene reference compound. The values of the peak potentials when combined are shown to shift by 120 mV/pH unit at 25°C with respect to the ferrocene reference potential. © 2007 Wiley-VCH Verlag GmbH and Co. KGaA.